Results 41 to 50 of about 158 (93)

海上风电场升压站变压器和GIS的设计、应用和展望

open access: yesGaoya dianqi, 2021
作为大型海上风电场的关键构成设施,海上交流升压站是海上风电场电力送出的枢纽,它的设计优化对于整个风场建设和运行的经济性、可靠性、可利用性、可维护性和安全性等都起着非常重要的作用。国内首个海上交流升压站在2015年于中广核如东风场投入运行[1],与成熟的陆上变电站系统相比,国内海上升压站无论是在设计还是运行方面都处于起步阶段,同时相关的设计标准和技术规范还不够完善,因此在恶劣的海洋环境工况下,对变电站用的电力变压器和GIS的技术设计要求和选用就变得尤为关键。基于丰富的欧洲海上升压站交付经验 ...
李德军, 周剑, 钟孝泰, 沈威
doaj  

Electricity Transmission Strategy Research Based on Wind-Coal-Battery-Hydrogen-CCUS Multi Energy Coupling and Bundling System [PDF]

open access: yes, 2023
[Introduction] In order to guarantee urban power supply and offshore wind power utilization without building new power lines, the paper aims to establish a electricity transmission strategy based on wind-coal-battery- hydrogen -CCUS multi energy coupling
Jiamin YIN   +7 more
core   +1 more source

Research on the Engineering Geological Model and Its Application for Offshore Wind Power Development and Construction [PDF]

open access: yes, 2023
[Introduction] Speeding up the offshore wind power construction and development is of great significance to promoting the adjustment of China's energy structure. China is accelerating the process of its wind power development in the entire offshore area,
Feng LIANG   +4 more
core   +1 more source

基于MMC的海上风电柔性直流送出控制策略研究

open access: yesGaoya dianqi, 2023
随着国内外大容量远距离海上风电的开发,采用基于模块化多电平换流器(modular multilevel converter,MMC)的柔性直流送出方式具有更大的经济优势。文中在介绍MMC工作原理和海上风电柔性直流送出拓扑基础上,提出了陆上换流站有源控制、海上换流站无源控制、陆上换流站直流耗能装置协调控制、海上换流站双联接变协调控制及系统启动顺序控制等核心控制策略;通过搭建基于实时数字仿真系统(real time digital simulation system,RTDS ...
宋延涛   +5 more
doaj  

Research on the impact of underwater noise radiated from offshore wind farm on Chinese white dolphin(Sousa chinensis) [PDF]

open access: yes, 2014
近年来,随着“低碳经济”理念被人们逐步接受并倡导,加大清洁能源开发力度成为未来能源的发展方向。在清洁能源的开发和利用中,风能利用技术相对成熟,而海上风能利用是其重要组成部分。但在海上风电场的建设期和运营期,,尤其是在风机桩基固定过程中进行的冲击式打桩作业,会向水中辐射高强度、瞬发性、宽频带的脉冲信号。研究表明,冲击式水下打桩噪声会影响海洋哺乳动物的行为,掩蔽其声学信号,甚至造成其听觉损伤。 中华白海豚(Chinesewhitedolphin,Sousachinensis)是我国国家一级保护动物 ...
汪启铭
core  

Research on Axial Mechanical Properties of the Grouted Connection Section Considering Installation Errors [PDF]

open access: yes, 2023
[Introduction] With the development of offshore wind turbine works to deep sea areas, the challenging construction environment tends to result in errors in the installation of the grouted connection for the jacket foundation.
Cheng CHEN   +4 more
core   +1 more source

海上风电场断路器重燃过电压研究

open access: yesDianci bileiqi, 2017
海上风电场真空断路器投切时,其多次重燃产生的过电压对海上风电场内的电力设备会造成影响。由过电压引发的大规模风机脱网事故会破坏电力系统稳定运行。针对这一问题,在详细分析真空断路器重燃机理的基础上,利用ATP-EMTP建立真空断路器模型实现对重燃过程的模拟,并通过仿真验证其正确性。首次将此真空断路器模型应用于海上风电场系统中,通过建立海上风电场等值模型,模拟断路器重燃时海上风电场内过电压情况,分析海底电缆及海上风电场系统参数对操作过电压的影响 ...
周歧斌, 程彧, 赵洋
doaj  

Accessibility and boarding technology for offshore wind power platforms in China: current status and future prospects [PDF]

open access: yes
Objective Most offshore wind power platforms are unmanned, resulting in high operation and maintenance costs due to the complex operating environment, limited accessibility, and short time window for going offshore.
Chao LIU   +4 more
core   +1 more source

海上风电场集电系统电压选择研究

open access: yesGaoya dianqi, 2022
随着海上风电大容量机组规模化发展,集电系统电气接线将变得复杂,选择合适的集电系统电压可有效减小集电系统有功损耗,降低建设成本,提高系统可靠性。文中研究了多种模式风电场集电系统结构形式,对比分析35 kV与66 kV集电方案技术特点,计算比较4种机型两种电压集电方案成本,并对集电方案成本进行灵敏度分析,评估集电系统电气接线可靠性。结果显示66 kV集电方案技术性较好,对大容量机组大规模风电场具有较好的适用性,但总体成本高于35 kV方案。35 kV集电方案是目前海上风电场集电系统主要形式,在66 ...
王辉, 付凌云, 孙世民, 秦琼
doaj  

大规模新能源接入系统暂态过电压研究综述

open access: yesDianci bileiqi, 2023
大规模新能源以东南沿海的海上风场、西北风电场和光伏发电场为主,这些区域新能源接入大电网系统直接导致多种暂态过电压。为了解决这类过电压难题,本研究从陆上大规模新能源的直流、交流接入,以及海上风电的柔直、交流接入的角度,以接入大电网系统因电网故障或开关操作造成的多种暂态过电压为目标,综述了机理研究、抑制方法以及过电压评估方法等,指出暂态过程中接入系统无功功率不平衡是导致暂态过电压的主要原因,抑制措施主要包括配置调相机等无功补偿装置及接入系统的控制策略优化,但针对复杂故障类型的暂态过电压机理 ...
范鹏   +4 more
doaj  

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